Spring整合Hibernate你可能不知道我遇到了多少个坑

org.hibernate.HibernateException: Could not obtain transaction-synchronized Session for current thread

org.hibernate.TransactionException: Transaction not successfully started

org.hibernate.TransientObjectException: The given object has a null identifier: ssh.model.Category

org.hibernate.HibernateException: update is not valid without active transaction

万幸 现在弄好了。有时间讲一讲解决的操作,与为什么会报错

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